56GS Gold is now listed for sale!
Grand Seiko 56GS 5645-7010 Gold. 56GS was the last generation of vintage Grand Seiko. The movement was redesigned to be thin and compact, making 56GS the slimmest automatic Grand Seiko at that time. It has a cap gold case, which was marketed by Seiko as a premium option and was thus priced a bit higher than the usual stainless steel version.